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Cabling and Connections
RS422 Port Configuration
RS422 Port Configuration
There are twelve 9-way D-type connectors (11RU mainframe, 6 RS422 ports on a 6RU
mainframe) which provide RS422 control.
Serial Ports are RS422 ports and can be assigned with communications protocols to
communicate with number of external devices. For most applications a standard 9-way pin-to-
pin cable will be sufficient to connect for example to a VTR, Server, Editor, Robotic Camera Head
control or other devices.
The RS422 ports are 9 Way D-type female configuration, shown below is the industry standard
wiring for a controlled device.
The ports automatically switch between controlling and controlled device according to the
protocol in use, a pin to pin cable is normally required. If the port should ever be configured as
a controlling device, simply exchange the words “Transmit” and “Receive” to achieve the correct
wiring.
RS422 Port Configuration
Pin Number
Function
1
Frame ground
2
RxA
3
TxB
4
GND
5
(No Connection)
6
GND
7
RxB
8
TxA
9
Frame ground
Pin 1
Pin 6
Pin 5
Pin 9
